Title:
三角波生成回路
Document Type and Number:
Japanese Patent JP4824599
Kind Code:
B2
Abstract:
A charging and discharging circuit of a triangular wave oscillation circuit includes an inverter circuit; a discharging reference potential generating circuit; a first NMOS transistor having a drain connected with a connection point between a first current source circuit and the capacitor, and a gate connected with the discharging reference potential generated by the discharging reference potential generating circuit; a second NMOS transistor having a gate inputted with the switching signal through the inverter circuit, a drain connected with the gate of the first NMOS transistor, and a source connected with a source of the first NMOS transistor; and a third NMOS transistor having a gate inputted with the switching signal, a drain connected with a connection point between the source of the first NMOS transistor and the source of the second NMOS transistor, and a source grounded.
More Like This:
Inventors:
Exit
Application Number:
JP2007040569A
Publication Date:
November 30, 2011
Filing Date:
February 21, 2007
Export Citation:
Assignee:
Seiko Instruments Inc.
International Classes:
H03K4/06
Domestic Patent References:
| JP2003152508A |
Attorney, Agent or Firm:
Kentaro Kuhara
Noriaki Uchino
Nobuyuki Kimura
Noriaki Uchino
Nobuyuki Kimura